Improved bind/unbind of controllers.

app/assets/javascripts/app/controllers/agent_ticket_create.coffee

@@ -23,6 +23,12 @@ class App.TicketCreate extends App.Controller
     if @ticket_id && @article_id
       @split = "/#{@ticket_id}/#{@article_id}"
 
+    load = (data) =>
+      App.Collection.loadAssets(data.assets)
+      @formMeta = data.form_meta
+      @buildScreen(params)
+    @bindId = App.TicketCreateCollection.one(load)
+
     # lisen if view need to be rerendered
     @bind 'ticket_create_rerender', (defaults) =>
       @log 'notice', 'error', defaults
@@ -33,11 +39,8 @@ class App.TicketCreate extends App.Controller
       return if !@authenticate(true)
       @render()
 
-    load = (data) =>
-      App.Collection.loadAssets(data.assets)
-      @formMeta = data.form_meta
-      @buildScreen(params)
-    @bindId = App.TicketCreateCollection.one(load)
+  release: =>
+    App.TicketCreateCollection.unbindById(@bindId)
 
   currentChannel: =>
     if !type

app/assets/javascripts/app/controllers/ticket_overview.coffee

@@ -126,8 +126,7 @@ class Navbar extends App.Controller
   release: =>
     if @vertical
       $(window).off 'resize.navbar', @autoFoldTabs
-    if @bindId
-      App.OverviewIndexCollection.unbind(@bindId)
+    App.OverviewIndexCollection.unbindById(@bindId)
 
   autoFoldTabs: =>
     items = App.OverviewIndexCollection.get()

app/assets/javascripts/app/lib/app_post/_collection_base.coffee

@@ -16,33 +16,38 @@ class App._CollectionSingletonBase
       @set(data)
       @callback(data)
 
-  get: ->
-    @collection_data
+  get: =>
+    @collectionData
 
-  set: (data) ->
+  set: (data) =>
     App.SessionStorage.set("collection-#{@event}", data)
-    @collection_data = data
+    @collectionData = data
 
-  bind: (callback, init = true, one = false) ->
+  bind: (callback, init = true, one = false) =>
     @counter += 1
+    localCounter = @counter
 
     # start init call if needed
     if init
-      if @collection_data is undefined
+      if @collectionData is undefined
         @fetch()
       else
-        callback(@collection_data)
+        callback(@collectionData)
         return if one
 
-    @callbacks[@counter] =
+    @callbacks[localCounter] =
       callback: callback
       one: one
+    localCounter
 
-  unbind: (callback) ->
+  unbind: (callback) =>
     for counter, attr of @callbacks
       if callback is attr.callback
         delete @callbacks[counter]
 
+  unbindById: (counter) =>
+    delete @callbacks[counter]
+
   fetch: =>
     if App.WebSocket.support()
       App.WebSocket.send(event: @event)

app/assets/javascripts/app/lib/app_post/overview_index_collection.coffee

@@ -17,6 +17,9 @@ class App.OverviewIndexCollection
   @unbind: (callback) ->
     _instance.unbind(callback)
 
+  @unbindById: (id) ->
+    _instance.unbindById(id)
+
   @trigger: ->
     _instance.trigger()
 

app/assets/javascripts/app/lib/app_post/ticket_create_collection.coffee

@@ -17,6 +17,9 @@ class App.TicketCreateCollection
   @unbind: (callback) ->
     _instance.unbind(callback)
 
+  @unbindById: (id) ->
+    _instance.unbindById(id)
+
   @trigger: ->
     _instance.trigger()